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https://www.readbyqxmd.com/read/28324929/hyperthermia-by-electromagnetic-fields-to-enhanced-clinical-results-in-oncology
#1
Gerard C van Rhoon, Maarten M Paulides, Jeannette M L van Holthe, Martine Franckena
Confining treatment to the tumor to improve therapeutic outcome and reduce toxicity, is a hot issue in cancer research. Hyperthermia is recognized as a strong sensitizer for radiotherapy and chemotherapy enhancing tumor control without increasing toxicity. Today's electromagnetic hyperthermia systems heat large tissue volumes with limited ability to selectively heat the tumor. Fortunately, tremendous improvements in 3-dimensional electromagnetic & temperature modelling provide an exciting opportunity to design advanced multi-element electromagnetic applicator systems...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28317022/water-dispersible-silica-coated-upconverting-liposomes-can-a-thin-silica-layer-protect-tta-uc-against-oxygen-quenching
#2
Sven H C Askes, Vincent C Leeuwenburgh, Wim Pomp, Hadi Arjmandi-Tash, Stefania Tanase, Thomas Schmidt, Sylvestre Bonnet
Light upconversion by triplet-triplet annihilation (TTA-UC) in nanoparticles has received considerable attention for bioimaging and light activation of prodrugs. However, the mechanism of TTA-UC is inherently sensitive for quenching by molecular oxygen. A potential oxygen protection strategy is the coating of TTA-UC nanoparticles with a layer of oxygen-impermeable material. In this work, we explore if (organo)silica can fulfill this protecting role. Three synthesis routes are described for preparing water-dispersible (organo)silica-coated red-to-blue upconverting liposomes...
March 13, 2017: ACS Biomaterials Science & Engineering
https://www.readbyqxmd.com/read/28302582/characterization-of-pegylated-and-non-pegylated-liposomal-formulation-for-the-delivery-of-hypoxia-activated-vinblastine-n-oxide-for-the-treatment-of-solid-tumors
#3
Vidhi M Shah, Duc X Nguyen, Adel Alfatease, Shay Bracha, Adam Wg Alani
Solid tumors often contain hypoxic regions which are resistant to standard chemotherapy and radiotherapy. We have developed a liposomal delivery system for a prodrug of vinblastine (CPD100) which converts to the parent compound only in the presence of lower oxygen levels. As a part of this work we have developed and optimized two formulations of CPD100: one composed of sphingomyelin/cholesterol (55/45; mol/mol) (CPD100Li) and the other composed of sphingomyelin/cholesterol/PEG (55/40/5; mol/mol) (CPD100 PEGLi)...
March 14, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28301223/antitumor-effect-of-nanoparticle-131-i-labeled-arginine-glycine-aspartate-bovine-serum-albumin-polycaprolactone-in-lung-cancer
#4
Hui Ming, Lei Fang, Jingmei Gao, Chengxia Li, Yanhui Ji, Yiming Shen, Yiming Hu, Ning Li, Jin Chang, Wei Li, Jian Tan
OBJECTIVE: The aim of the present study is to investigate the biologic effects of internal irradiation and the therapeutic effectiveness of (131)I-labeled arginine-glycine-aspartate (RGD)-bovine serum albumin (BSA)-polycaprolactone (PCL) ((131)I-RGD-BSA-PCL) in murine lung cancer models. MATERIALS AND METHODS: The target binding and cellular uptake of NCI-H460 lung cancer cells overexpressing integrin αvβ3 were observed by confocal microscopy. Flow cytometry was used to assay apoptosis...
March 16, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28298546/64cu-mm-302-positron-emission-tomography-quantifies-variability-of-enhanced-permeability-and-retention-of-nanoparticles-in-relation-to-treatment-response-in-patients-with-metastatic-breast-cancer
#5
Helen Lee, Anthony F Shields, Barry A Siegel, Kathy D Miller, Ian Krop, Cynthia X Ma, Patricia M LoRusso, Pamela N Munster, Karen Campbell, Daniel F Gaddy, Shannon C Leonard, Elena Geretti, Stephanie J Blocker, Dmitri B Kirpotin, Victor Moyo, Thomas J Wickham, Bart S Hendriks
PURPOSE: Therapeutic nanoparticles are designed to deliver their drug payloads through enhanced permeability and retention (EPR) in solid tumors. The extent of EPR and its variability in human tumors is highly debated and has been proposed as an explanation for variable responses to therapeutic nanoparticles in clinical studies. EXPERIMENTAL DESIGN: We assessed the EPR effect in patients using a 64Cu-labeled nanoparticle, 64Cu-MM-302 (64Cu-labeled HER2-targeted PEGylated liposomal doxorubicin), and imaging by Positron Emission Tomography/Computed Tomography (PET/CT)...
March 15, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28294419/management-of-cancerization-field-with-a-medical-device-containing-photolyase-a-randomized-double-blind-parallel-group-pilot-study
#6
Elvira Moscarella, Giuseppe Argenziano, Caterina Longo, Sonia Aladren
At least 6 clinical studies conducted in subjects with actinic keratosis (AK) have demonstrated the therapeutic effect of Eryfotona AK-NMSC(®) (ISDIN, Spain), a topically applied film-forming cream containing DNA Repairsomes(™) (broad-spectrum UV filters and the DNA-repair enzyme photolyase, encapsulated in liposomes) (1-6) (registered as medical device in Europe). Recently a German opinion paper reviewed clinical evidence for the efficacy of topical application of this topical cream. They concluded that there was strong evidence that patient at high risk for developing AK would benefit from the year around use of this product marketed in Europe in the medical device category...
March 10, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28293107/nh4hco3-gas-generating-liposomal-nanoparticle-for-photoacoustic-imaging-in-breast-cancer
#7
Jizhu Xia, Gang Feng, Xiaorong Xia, Lan Hao, Zhigang Wang
In this study, we have developed a biodegradable nanomaterial for photoacoustic imaging (PAI). Its biodegradation products can be fully eliminated from a living organism. It is a gas-generating nanoparticle of liposome-encapsulating ammonium bicarbonate (NH4HCO3) solution, which is safe, effective, inexpensive, and free of side effects. When lasers irradiate these nanoparticles, NH4HCO3 decomposes to produce CO2, which can absorb much of the light energy under laser irradiation with a specific wavelength, and then expand under heat to generate a thermal acoustic wave...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28292243/injectable-drug-loaded-nanocarriers-for-lung-cancer-treatments
#8
Huang-Ping Yu, Ibrahim A Aljuffali, Jia-You Fang
Different types of injectable nanoparticles, including metallic nanoparticles, polymeric nanocarriers, dendrimers, liposomes, niosomes, and lipid nanoparticles, have been employed to load drugs for lung delivery. Nanoparticles used for lung delivery offer some benefits over conventional formulations, including increased solubility, enhanced stability, improved epithelium permeability and bioavailability, prolonged half-life, tumor targeting, and minimal side effects. In recent years, the concept of using injectable nanocarriers as vehicles for drug delivery has attracted increasing attention...
2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28282469/correction-photoacoustic-imaging-of-cancer-treatment-response-early-detection-of-therapeutic-effect-from-thermosensitive-liposomes
#9
Jonathan P May, Eno Hysi, Lauren A Wirtzfeld, Elijus Undzys, Shyh-Dar Li, Michael C Kolios
[This corrects the article DOI: 10.1371/journal.pone.0165345.].
2017: PloS One
https://www.readbyqxmd.com/read/28279918/near-infrared-light-activation-of-quenched-liposomal-ce6-for-synergistic-cancer-phototherapy-with-effective-skin-protection
#10
Liangzhu Feng, Danlei Tao, Ziliang Dong, Qian Chen, Yu Chao, Zhuang Liu, Meiwan Chen
Current photodynamic therapy (PDT) is suffering from limited efficacy towards hypoxia tumors and severe post-treatment photo-toxicity such as light-induced skin damages. To make PDT more effective in cancer treatment while being patient-comfortable, herein, a hexylamine conjugated chlorin e6 (hCe6) as the photosensitizer together with a lipophilic near-infrared (NIR) dye 1,1'-dioctadecyl-3,3,3',3'-tetramethylindotricarbocyanine iodide (DiR) are co-encapsulated into polyethylene glycol (PEG) shelled liposomes...
November 21, 2016: Biomaterials
https://www.readbyqxmd.com/read/28278584/liposome-targeted-delivery-for-highly-potent-drugs
#11
Hassan Bardania, Shabnam Tarvirdipour, Farid Dorkoosh
Considerable adverse side effects and cytotoxicity of highly potent drugs for healthy tissue require the development of novel drug delivery systems to improve pharmacokinetics and result in selective distribution of the loaded agent. The introduction of targeted liposomal formulations has provided potential solutions for improved drug delivery to cancer cells, penetrating delivery through blood-brain barrier and gene therapy. A large number of investigations have been developed over the past few decades to overcome pharmacokinetics and unfavorable side effects limitations...
February 17, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28277825/the-efficacy-of-wga-modified-daunorubicin-anti-resistant-liposomes-in-treatment-of-drug-resistant-mcf-7-breast-cancer
#12
Shuang Liu, Xiao-Li Song, Yan-Hong Wang, Xiao-Min Wang, Yao Xiao, Xin Wang, Lan Cheng, Xue-Tao Li
BACKGROUND: Breast cancer is the most common malignancy and remains a leading cause of cancer-related deaths in female. Chemotherapy failure of breast cancer is mainly associated with multidrug resistance of cancer cells. PURPOSE: The WGA modified daunorubicin anti-resistant liposomes were developed for circumventing the multidrug resistance and eliminating cancer cells. METHODS: WGA was modified on liposomal surface for increasing the intracellular uptake...
February 21, 2017: Journal of Drug Targeting
https://www.readbyqxmd.com/read/28274844/phosphatidylserine-lipids-and-membrane-order-precisely-regulate-the-activity-of-polybia-mp1-peptide
#13
Dayane S Alvares, João Ruggiero Neto, Ernesto E Ambroggio
Polybia-MP1 (IDWKKLLDAAKQIL-NH2) is a lytic peptide from the Brazilian wasp venom with known anti-cancer properties. Previous evidence indicates that phosphatidylserine (PS) lipids are relevant for the lytic activity of MP1. In agreement with this requirement, phosphatidylserine lipids are translocated to the outer leaflet of cells, and are available for MP1 binding, depending on the presence of liquid-ordered domains. Here, we investigated the effect of PS on MP1 activity when this lipid is reconstituted in membranes of giant or large liposomes with different lipid-phase states...
March 6, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28274796/dual-functional-lipomet-mediates-envelope-type-nanoparticles-to-combinational-oncogene-silencing-and-tumor-growth-inhibition
#14
Kai Shi, Yi Zhao, Lei Miao, Andrew Satterlee, Matthew Haynes, Cong Luo, Sara Musetti, Leaf Huang
The success of small interfering RNA (siRNA)-mediated gene silencing for cancer therapy is still limited because of its instability and poor intracellular internalization. Traditional cationic carriers cannot adequately meet the need for clinical application of siRNA. We herein report a dual-functional liposome containing a cholesterol derivative of metformin, i.e., LipoMET, which takes advantage of the fusogenic activity as well as intrinsic tumor apoptosis inducing ability of biguanide moiety to achieve a combinational anti-oncogenic effect...
March 5, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28266269/liposomal-nanotechnology-for-cancer-theranostics
#15
Zhifei Dai, Xiuli Yue
Liposomes are a type of biomimetic nanoparticles generated from self-assembling concentric lipid bilayer enclosing an aqueous core domain. They have been attractive nanocarriers for the delivery of many drugs (e.g. radiopharmaceuticals, chemotherapeutic agents, porphyrin) and diagnostic agents (e.g. fluorescent dyes, quantum dots, Gadolinium complex and Fe3O4) by encapsulating (or adsorbing) hydrophilic one inside the liposomal aqueous core domain (or on the bilayer membrane surface), and by entrapping hydrophobic one within the liposomal bilayer...
March 5, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28264666/prevention-of-liver-tumor-formation-in-woodchucks-with-established-hepatocellular-carcinoma-by-treatment-with-cationic-liposome-dna-complexes
#16
Jeffery Fairman, Katherine H Liu, Stephan Menne
BACKGROUND: Approximately 250 million people worldwide are chronically infected with hepatitis B virus (HBV) and more than half of the hepatocellular carcinoma (HCC) cases are attributed to this infection. As HCC has a high mortality rate, and current treatment options are remarkably limited, the development of new therapeutic treatment strategies is warranted. METHODS: In this study, woodchucks infected with woodchuck hepatitis virus (WHV), and with pre-existing liver tumors, were used as a model to investigate if complexes of cationic liposomes and non-coding DNA (JVRS-100) were effective in treatment of HCC...
March 6, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28263536/effectiveness-of-human-cytochrome-p450-3a4-present-in-liposomal-and-microsomal-nanoparticles-in-formation-of-covalent-dna-adducts-by-ellipticine
#17
Miroslav Sulc, Iveta Mrizova, Tereza Cerna, Eva Frei, Tomas Eckschlager, Vojtech Adam, Katerina Kopeckova, Marie Stiborova
OBJECTIVES: Ellipticine is an anticancer agent that functions through multiple mechanisms participating in cell cycle arrest and initiation of apoptosis. This drug forms covalent DNA adducts after its enzymatic activation with cytochrome P450 (CYP), which is one of the most important ellipticine DNA-damaging mechanisms of its cytotoxic effects. The improvements of cancer treatment are the major challenge in oncology research. Nanotransporters (nanoparticles) are promising approaches to target tumor cells, frequently leading to improve drug therapeutic index...
December 18, 2016: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/28257810/anti-her2-immunoliposomes-for-co-delivery-of-paclitaxel-and-rapamycin-for-breast-cancer-therapy
#18
Josimar O Eloy, Raquel Petrilli, Deise L Chesca, Fabiano P Saggioro, Robert J Lee, Juliana Maldonado Marchetti
Breast cancer is the second leading cause of cancer deaths among women. Paclitaxel (PTX) is used for its treatment, however non-selectivity, rapid systemic clearance and hypersensitivity to the commercially available formulation are major drawbacks. Rapamycin (RAP), an mTOR inhibitor, acts synergistically with PTX, and thus could be used in combination with it. Drug loading into nanocarriers, particularly liposomes, has proven to enhance efficacy and reduce side-effects of chemotherapeutic drugs. Within this context, the functionalization of liposomes with antibodies for overexpressed receptors on tumor surface is a potential strategy to increase specificity and reduce side-effects...
February 28, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28255366/liposomal-nanoparticles-carrying-anti-il6r-antibody-to-the-tumour-microenvironment-inhibit-metastasis-in-two-molecular-subtypes-of-breast-cancer-mouse-models
#19
Chunlei Guo, Yanan Chen, Wenjuan Gao, Antao Chang, Yujie Ye, Wenzhi Shen, Yunping Luo, Shengyong Yang, Peiqing Sun, Rong Xiang, Na Li
Tumour microenvironment (TME) contributes significantly towards potentiating the stemness and metastasis properties of cancer cells. IL6-Stat3 is one of the important cell signaling pathways in mediating the communication between tumour and immune cells. Here, we have systematically developed a novel anti-CD44 antibody-mediated liposomal nanoparticle delivery system loaded with anti-IL6R antibody, which could specifically target the TME of CD44(+) breast cancer cells in different mouse models for triple negative and luminal breast cancer...
2017: Theranostics
https://www.readbyqxmd.com/read/28255230/reversal-of-multidrug-resistance-in-human-lung-cancer-cells-by-delivery-of-3-octadecylcarbamoylacrylic-acid-cisplatin-based-liposomes
#20
Juan Song, Weifang Ren, Tingting Xu, Yi Zhang, Hongyu Guo, Shanshan Zhu, Li Yang
Liposome-based drug delivery system would be an innovative and promising candidate to circumvent multidrug resistance (MDR) of cisplatin (CDDP). However, the reversal efficacy of liposomal CDDP was severely impaired by weak cellular uptake and insufficient intracellular drug release. In this study, 3-octadecylcarbamoylacrylic acid-CDDP nanocomplex (OMI-CDDP-N)-based liposomes (OCP-L) with high cellular uptake and sufficient intracellular drug release were designed to circumvent MDR of lung cancer. OMI-CDDP-N was synthesized through a pH-sensitive monocarboxylato and an O→Pt coordinate bond, which is more efficient than CDDP...
2017: Drug Design, Development and Therapy
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